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Cholestasis v2.3 GALK1 Catherine Snow Tag Q1_22_NHS_review was removed from gene: GALK1.
Tag Q2_22_rating was removed from gene: GALK1.
Tag Q2_22_expert_review was removed from gene: GALK1.
Cholestasis v2.3 GALK1 Catherine Snow reviewed gene: GALK1: Rating: RED; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Cholestasis v2.2 GALK1 Catherine Snow Source Expert Review Red was added to GALK1.
Source NHS GMS was added to GALK1.
Rating Changed from Green List (high evidence) to Red List (low evidence)
Cholestasis v1.107 GALK1 Ivone Leong Tag Q2_22_rating tag was added to gene: GALK1.
Tag Q2_22_expert_review tag was added to gene: GALK1.
Cholestasis v1.105 GALK1 Ivone Leong Tag for-review was removed from gene: GALK1.
Cholestasis v1.105 GALK1 Ivone Leong commented on gene: GALK1: The rating of this gene has been updated following NHS Genomic Medicine Service approval.
Cholestasis v1.104 GALK1 Ivone Leong Source Expert Review Green was added to GALK1.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Cholestasis v1.103 GALK1 Ivone Leong Tag Q1_22_NHS_review tag was added to gene: GALK1.
Cholestasis v1.101 GALK1 Ivone Leong Publications for gene: GALK1 were set to
Cholestasis v1.100 GALK1 Miranda Durkie reviewed gene: GALK1: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID: 33413482, PMID: 28108845; Phenotypes: Galactokinase deficiency with cataracts; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Cholestasis v1.70 GALK1 Ivone Leong Classified gene: GALK1 as Amber List (moderate evidence)
Cholestasis v1.70 GALK1 Ivone Leong Gene: galk1 has been classified as Amber List (Moderate Evidence).
Cholestasis v1.69 GALK1 Ivone Leong Classified gene: GALK1 as Amber List (moderate evidence)
Cholestasis v1.69 GALK1 Ivone Leong Gene: galk1 has been classified as Amber List (Moderate Evidence).
Cholestasis v1.68 GALK1 Ivone Leong gene: GALK1 was added
gene: GALK1 was added to Cholestasis. Sources: Expert Review
for-review tags were added to gene: GALK1.
Mode of inheritance for gene: GALK1 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: GALK1 were set to Galactokinase deficiency with cataracts, OMIM:230200; MONDO:0009255 Edit
Review for gene: GALK1 was set to AMBER
Added comment: This gene is associated with an appropriate phenotype in OMIM and Gene2phenotype. It is a Green gene on Inborn errors of metabolism (v2.28) and Fetal anomalies (v1.111). There is enough evidence for a gene-disease association.

After discussion with the Genomics England Clinical Team, it was decided that this gene should be added as an Amber gene on this panel as the phenotype can mimic cholestasis with a presentation with jaundice.
Sources: Expert Review
Cholestasis v1.3 GALM Zornitza Stark gene: GALM was added
gene: GALM was added to Cholestasis. Sources: Literature
Mode of inheritance for gene: GALM was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GALM were set to 30451973; 30910422
Phenotypes for gene: GALM were set to type IV galactosaemia
Review for gene: GALM was set to GREEN
Added comment: Homozygous and compound heterozygous variants (missense, nonsense and frameshift) found in 8 Japanese patients from unrelated families with unexplained galactosaemia. (No variants in GALT, GALK1, and GALE). In vitro expression analysis and enzyme activity assay of the patients’ peripheral blood mononuclear cells showed total lack of or compromised expression of GALM protein. One homozygote for one of these variants p.(Gly142Arg) in gnomAD (African population). (Wada, Y. et al 2019; PMID: 30451973)

Note only two individuals were reported as having transient cholestasis.
Sources: Literature